289494941 has 2 divisors, whose sum is σ = 289494942. Its totient is φ = 289494940.

The previous prime is 289494923. The next prime is 289494943. The reversal of 289494941 is 149494982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163584100 + 125910841 = 12790^2 + 11221^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289494941 is a prime.

Together with 289494943, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 289494941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289494943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144747470 + 144747471.

It is an arithmetic number, because the mean of its divisors is an integer number (144747471).

Almost surely, 2^289494941 is an apocalyptic number.

It is an amenable number.

289494941 is a deficient number, since it is larger than the sum of its proper divisors (1).

289494941 is an equidigital number, since it uses as much as digits as its factorization.

289494941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The square root of 289494941 is about 17014.5508609543. The cubic root of 289494941 is about 661.5261141547.

The spelling of 289494941 in words is "two hundred eighty-nine million, four hundred ninety-four thousand, nine hundred forty-one".